package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.util.*;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DatePattern;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.date.LocalDateTimeUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.huaweicloud.sdk.iotda.v5.IoTDAClient;
import com.huaweicloud.sdk.iotda.v5.model.*;
import com.zzyl.common.core.domain.AjaxResult;
import com.zzyl.common.exception.base.BaseException;
import com.zzyl.common.utils.DateUtils;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.common.utils.uuid.UUID;
import com.zzyl.nursing.dto.DeviceDto;
import com.zzyl.nursing.vo.DeviceDetailVo;
import com.zzyl.nursing.vo.ProductVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.mapper.DeviceMapper;
import com.zzyl.nursing.domain.Device;
import com.zzyl.nursing.service.IDeviceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

/**
 * 设备Service业务层处理
 * 
 * @author ruoyi
 * @date 2025-08-01
 */
@Service
public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> implements IDeviceService
{
    @Autowired
    private DeviceMapper deviceMapper;
    @Autowired
    private IoTDAClient client;
    @Autowired
    private RedisTemplate<String , String> redisTemplate;

    /**
     * 查询设备
     * 
     * @param id 设备主键
     * @return 设备
     */
    @Override
    public Device selectDeviceById(Long id)
    {
        return getById(id);
    }

    /**
     * 查询设备列表
     * 
     * @param device 设备
     * @return 设备
     */
    @Override
    public List<Device> selectDeviceList(Device device)
    {
        return deviceMapper.selectDeviceList(device);
    }

    /**
     * 新增设备
     * 
     * @param device 设备
     * @return 结果
     */
    @Override
    public int insertDevice(Device device)
    {
        return save(device) ? 1 : 0;
    }

    /**
     * 修改设备
     * 
     * @param device 设备
     * @return 结果
     */
    @Override
    public int updateDevice(Device device)
    {

        return updateById(device) ? 1 : 0;
    }

    /**
     * 批量删除设备
     * 
     * @param ids 需要删除的设备主键
     * @return 结果
     */
    @Override
    public int deleteDeviceByIds(Long[] ids)
    {
        return removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除设备信息
     * 
     * @param iotId 设备主键
     * @return 结果
     */
    @Override
    public int deleteDeviceById(String iotId)
    {
        return removeById(iotId) ? 1 : 0;
    }
    /**
     * 从物联网平台同步产品列表
     */
    public static final String IOT_ALL_PRODUCT_LIST= "iot:all_product_list";
    @Override
    public void syncProductList() {
        // 请求参数
        ListProductsRequest request = new ListProductsRequest();
        // 设置条数
        request.setLimit(50);
        // 发起请求
        ListProductsResponse response = client.listProducts(request);
        if (response.getHttpStatusCode() != 200) {
            throw new BaseException("物联网接口 - 查询产品，同步失败");
        }
        // 存储到redis
        redisTemplate.opsForValue().set(IOT_ALL_PRODUCT_LIST, JSONUtil.toJsonStr(response.getProducts()));
    }

    @Override
    public List<ProductVo> allProduct() {
        // 从redis中查询数据
        String json = redisTemplate.opsForValue().get(IOT_ALL_PRODUCT_LIST);
        // 如果数据为空，则返回一个空集合
        if (StringUtils.isEmpty(json)){
            return  Collections.emptyList();

        }
        // 解析数据，并返回
        return JSONUtil.toList(json, ProductVo.class);
    }

    /**
     * 注册设备
     * @param deviceDto
     */
    @Override
    public void registerDevice(DeviceDto deviceDto) {
        // 判断设备名称是否存在
        long count = count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getDeviceName, deviceDto.getDeviceName()));
        if (count > 0){
            throw new BaseException("设备名称已存在");
        }
        // 判断设备标识是否存在
        count = count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getNodeId, deviceDto.getNodeId()));
        if (count > 0){
            throw new BaseException("设备标识已存在");
        }
        // 判断同一位置是否绑定了相同的产品
        count = count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getBindingLocation, deviceDto.getBindingLocation())
                .eq(Device::getProductKey, deviceDto.getProductKey())
                .eq(Device::getLocationType, deviceDto.getLocationType())
                .eq(deviceDto.getPhysicalLocationType() != null, Device::getPhysicalLocationType, deviceDto.getPhysicalLocationType()));
        if (count > 0){
            throw new BaseException("该老人/位置已绑定该产品，请重新选择");
        }
        // 注册设备--->IoT平台
        AddDeviceRequest request = new AddDeviceRequest();
        AddDevice addDevice = new AddDevice();
        addDevice.setDeviceName(deviceDto.getDeviceName());
        addDevice.setProductId(deviceDto.getProductKey());
        addDevice.setNodeId(deviceDto.getNodeId());
        // 秘钥设置,因为数据库表中也需要该字段
        AuthInfo authInfo = new AuthInfo();
        String secret = UUID.randomUUID().toString().replaceAll("-", "");
        authInfo.withSecret(secret);
        addDevice.setAuthInfo(authInfo);
        request.setBody(addDevice);

        AddDeviceResponse response;
        try {
            response = client.addDevice(request);
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("物联网接口 - 注册设备，调用失败");
        }
        // 本地保存设备
        // 属性拷贝
        Device device = BeanUtil.toBean(deviceDto, Device.class);
        //设置秘钥
        device.setSecret(secret);
        // 设置设备id
        device.setIotId(response.getDeviceId());
        this.save(device);
    }

    /**
     *查询设备详细数据
     * @param iotId
     */
    @Override
    public DeviceDetailVo queryDeviceDetail(String iotId) {
        // 查询本地设备数据
        Device devices = getOne(Wrappers.<Device>lambdaQuery()
                .eq(Device::getIotId, iotId));
        if (BeanUtil.isEmpty(devices)){
            throw new BaseException("设备不存在");
        }
        // 调用华为云接口查询设备详情
        ShowDeviceRequest request = new ShowDeviceRequest();
        request.setDeviceId(iotId);
        ShowDeviceResponse response;
        try {
            response = client.showDevice(request);
        } catch (Exception e) {
            throw new RuntimeException("物联网接口 - 查询设备详情，调用失败");
        }
        // 属性拷贝
        DeviceDetailVo deviceVo =BeanUtil.toBean(devices, DeviceDetailVo.class);
        deviceVo.setDeviceStatus(response.getStatus());
        String activeTimeStr = response.getActiveTime();
        // 日期转换
//        if (StringUtils.isNotEmpty(activeTimeStr)){
//            LocalDateTime  activeTime = LocalDateTimeUtil.parse(activeTimeStr, DatePattern.UTC_MS_PATTERN);
//            deviceVo.setActiveTime(DateTimeZoneConverter.utcToShanghai(activeTime));
//        }
        return deviceVo;
    }

    /**
     * 查询设备上报数据
     * @param iotId
     * @return
     */
    @Override
    public AjaxResult queryServiceProperties(String iotId) {
         ShowDeviceShadowRequest request = new ShowDeviceShadowRequest();
         request.setDeviceId(iotId);
         ShowDeviceShadowResponse response =  client.showDeviceShadow(request);
         if (response.getHttpStatusCode() != 200){
             throw new BaseException("物联网接口 - 查询设备影子，调用失败");
         }
        List<DeviceShadowData> shadow = response.getShadow();
        if(CollUtil.isEmpty(shadow)) {
            List<Object> emptyList = Collections.emptyList();
            return AjaxResult.success(emptyList);
        }
        // 获取上报数据的reported （参考返回的json数据）
        DeviceShadowProperties reported = shadow.get(0).getReported();
        // 把数据转换为JSONObject(map)，方便处理
        JSONObject jsonObject = JSONUtil.parseObj(reported.getProperties());
        // 遍历数据，封装到list中
        List<Map<String,Object>>  list = new ArrayList<>();
        // 事件上报时间
        String eventTimeStr = reported.getEventTime();
        // 把字符串转换为LocalDateTime
        LocalDateTime eventTimeLocalDateTime = LocalDateTimeUtil.parse(eventTimeStr, "yyyyMMdd'T'HHmmss'Z'");
        // 时区转换
        // LocalDateTime eventTime = DateTimeZoneConverter.utcToShanghai(eventTimeLocalDateTime);


        // k:属性标识，v:属性值
        jsonObject.forEach((k,v) -> {
            Map<String,Object> map = new HashMap<>();
            map.put("functionId", k);
            map.put("value", v);
            //map.put("eventTime", eventTime);
            list.add(map);
        });

        // 数据返回
        return AjaxResult.success(list);
    }

    /**
     * 查询产品详情
     * @param productKey
     * @return
     */
    @Override
    public AjaxResult queryProduct(String productKey) {
        // 参数校验
        if(StringUtils.isEmpty(productKey)) {
            throw new BaseException("请输入正确的参数");
        }
        // 调用华为云IOT平台接口
        ShowProductRequest showProductRequest = new ShowProductRequest();
        showProductRequest.setProductId(productKey);
        ShowProductResponse response;

        try {
            response = client.showProduct(showProductRequest);
        } catch (Exception e) {
            throw new BaseException("查询产品详情失败");
        }
        // 判断是否存在服务数据
        List<ServiceCapability> serviceCapabilities = response.getServiceCapabilities();
        if(CollUtil.isEmpty(serviceCapabilities)) {
            return AjaxResult.success(Collections.emptyList());
        }

        return AjaxResult.success(serviceCapabilities);
    }
}
